20148730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{3943}}^1$

素因数の和:4030

約数の個数: 32

約数和(自身を含む): 42027264

約数和(自身を除く): 21878534

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 73, 146, 365, 511, 730, 1022, 2555, 3943, 5110, 7886, 19715, 27601, 39430, 55202, 138005, 276010, 287839, 575678, 1439195, 2014873, 2878390, 4029746, 10074365, 20148730]

約数ペア:

[(1, 20148730), (2, 10074365), (5, 4029746), (7, 2878390), (10, 2014873), (14, 1439195), (35, 575678), (70, 287839), (73, 276010), (146, 138005), (365, 55202), (511, 39430), (730, 27601), (1022, 19715), (2555, 7886), (3943, 5110)]